ASTROSAT CZTI

Data Quality Report

Orbit 34017

Creation date: 2024-06-27T20:55:26.169627
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A11_106T03_9000004864_34017cztM0_level2.evt modeM0/AS1A11_106T03_9000004864_34017cztM0_level2_quad_clean.evt
Size (bytes)460,183,68067,777,920
Size438.9 MB 64.6 MB
Events in quadrant A2,600,817451,672
Events in quadrant B4,064,864417,970
Events in quadrant C2,945,606433,883
Events in quadrant D4,003,402415,128

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0103732
B0149391
C0116731
D0151571

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0980
B0980
C0980
D0980

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A474440.084317%
B474462613.195616%
C4744400.843170%
D47441994.194772%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 6867 4745 0 0 0.00% 0.00%
B 6867 4745 528 528 7.69% 11.13%
C 6867 4745 38 38 0.55% 0.80%
D 6867 4745 178 178 2.59% 3.75%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 15 169 186309 1514.55 619 610 122.6
A 10 83 10541 80.99 619 610 122.6
A 13 6 9681 73.98 619 610 122.6
B 5 172 1497032 14040.25 575 564 106.6
B 5 31 96022 895.61 575 564 106.6
B 0 189 86541 806.66 575 564 106.6
C 3 233 305054 2305.48 581 585 132.1
C 15 214 218738 1651.89 581 585 132.1
C 0 10 84931 638.68 581 585 132.1
D 8 195 898548 6210.5 587 569 144.6
D 12 233 408838 2823.63 587 569 144.6
D 2 250 110987 763.66 587 569 144.6

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter